[Develop ] Set Z region as PAL and fix region link

[Suprapote]

Description

Set Z code as PAL and update the region info link since the original is broken

Motivation and Context

How Has This Been Tested?

Screenshots

Types of changes

• Improvement (non-breaking change that adds a new feature)
• Bug fix (fixes an issue)
• Breaking change (breaking change)
• Documentation Improvement
• Config and build (change in the configuration and build system, has no impact on code or features)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

You agree with the license terms and that other license types may be granted with permission of the original N64FlashcartMenu project license holders.

• I agree.
• AI helped me.

Signed-off-by: GITHUB_USER <GITHUB_USER_EMAIL>